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Finding the Fourth Proportional to 8,774.92, 12,107.46 and 5,237.56

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Solution

The fourth proportional to 8,774.92, 12,107.46 and 5,237.56 is: 7,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.92 : 12,107.46 = 5,237.56 : x
  2. Step 2: Convert to fraction form
    8,774.92/12,107.46 = 5,237.56/x
  3. Step 3: Cross multiply
    8,774.92x = 12,107.46 × 5,237.56
  4. Step 4: Simplify right side
    8,774.92x = 63,413,548.20
  5. Step 5: Solve for x
    x = 63,413,548.20/8,774.92
  6. Step 6: Final answer
    x = 7,226.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.